In OpenOffice and NeoOffice, you can show and hide rows and columns. This is useful as you may want the data to be included in the sheet, however you may not necessarily want all the data viewable. Note that this does NOT delete the data. It merely hides the column.
Hiding a Column
To hide a column, right mouse click (or Control-Click for Mac users) on the letter at the top of the column. This will highlight the column, as well as make a menu appear.
Select ‘Hide’ from the menu.
The column should disappear from view.
Note in the image below, you can see column C and column E, but column D is not visible.
Showing a Column (Excel: unhide)
To make the column visible, click on the C and E columns, highlighting them both, and then right click (or control-click) and select ‘Show’ from the menu, like this:
You should now be able to see your column.